This chain ring is designed to be used as
part of the White Industries Variable Bolt Circle (VBC) bicycle crankset. The
VBC is a double rather than a triple ring crankset because a traditional
triple tends to have a lot of unnecessary gear overlap. The VBC crank is
cleaner and less complex and still gives the rider suitable gearing
solutions. White Industries offers a large range of gearing options and
the rings can be mixed and matched to whatever combination suits your
bike and riding needs.

This outer ring has a unique design with a
splined ring interfacing to the crank set. An elongated five-window
design replaces the more traditional chain ring bolt circle, and these
windows allow the inner ring to self center without being confined to a
specific bolt circle.